In terms of what we see in the night sky, are we a statistical anomaly compared to the average star system?
The night sky:
Earth’s moon might also be a bit unusual.
Other than that:
We’ve got one star (say, as opposed to two). I’m not sure what the threshold for statistical anomaly is, but it’s less common. I’m also not sure how common planets orbiting a star, as opposed to not having planets is.
It’s also unusual that our moon is just the right size that, during a solar eclipse, we can see the solar corona. If the moon were much bigger, the corona would be obscured, and if it were smaller, too much of the rest of the sun would be visible for us to look at it.
The night sky:
Earth’s moon might also be a bit unusual.
Other than that:
We’ve got one star (say, as opposed to two). I’m not sure what the threshold for statistical anomaly is, but it’s less common. I’m also not sure how common planets orbiting a star, as opposed to not having planets is.
It’s also unusual that our moon is just the right size that, during a solar eclipse, we can see the solar corona. If the moon were much bigger, the corona would be obscured, and if it were smaller, too much of the rest of the sun would be visible for us to look at it.
And it is also temporary: Over the course of millions of years the moon is slowly moving away from Earth: https://www.bbc.com/news/science-environment-12311119